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Finding the Fourth Proportional to 16,128,542.90, 22,609,819.90 and 16,128,542.90

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Solution

The fourth proportional to 16,128,542.90, 22,609,819.90 and 16,128,542.90 is: 22,609,819.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,128,542.90 : 22,609,819.90 = 16,128,542.90 : x
  2. Step 2: Convert to fraction form
    16,128,542.90/22,609,819.90 = 16,128,542.90/x
  3. Step 3: Cross multiply
    16,128,542.90x = 22,609,819.90 × 16,128,542.90
  4. Step 4: Simplify right side
    16,128,542.90x = 364,663,450,218,423.69
  5. Step 5: Solve for x
    x = 364,663,450,218,423.69/16,128,542.90
  6. Step 6: Final answer
    x = 22,609,819.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.